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circuit and not supplying current (when1=0 A).
Eureka can: the displacement can in Archimedes’ principle experiment.
Free fall: the falling of an object with uniform acceleration under the force of
gravity if air resistance is negligible.
Freezing: the process whereby a liquid is changed to a solid.
Frequency: the number of complete oscillations or cycles produced in a unit time.
Fuse rating: the maximum amount of current that a fuse can allow to pass through
before it melts.
Fuse: a component which is used to control the amount of current flowing in
the circuit.
Heat: the measure of the total internal energy contained in a body.
Inclined plane: a plane surface at an angle to the horizontal.
Independent variable: the variable that you are changing in an investigation or experiment.
Interference: a disturbance caused if two identical sets of waves travelling through the
same region of water resulting in either reinforcement or cancelling each
other.
Internal resistance (r): the resistance of a cell or battery to a current it causes.
is not in a circuit and not supplying current (when I = 0 A).
Kilowatt-hour: the electrical energy supplied in 1 hour to an appliance whose power is
1kw.
Kinetic energy: form of energy that a body possesses because of its motion.
Kinetic theory: a scientific explanation of the behaviour of the three states of matter.
Latent heat: the heat taken in or given out whenever a substance changes its states.
Lever: any rigid body which is pivoted about a point called the fulcrum.
Longitudinal wave: a wave in which the direction of the vibrating particles (oscillations) is
the same as the direction of a wave itself OR it is a wave in which the
displacements are parallel to the direction of a wave itself.
Machine: any device in which a force applied at one point can be used to overcome
a force at some other point.
matter.
Matter: anything which has mass and volume or occupies space.
Mechanical advantage: the ratio of the two forces, the load and the effort.
Mechanical waves: the waves that require a medium for propagation. They cannot pass
through a vacuum.
Melting: the process whereby a solid changes to a liquid.
Ohm: the electrical resistance of a conductor in which the current is 1 A when a
p.d. of 1 V is applied across it.
Oscillations or vibrations: complete upward or downward movements of an object about its fixed
position (rest position or equilibrium position) or complete to and fro
movements of an object about its fixed position (rest position or
equilibrium position).
Parallax error: the apparent change in the position of an object due to the apparent
change in the position of your eyes.
Parallel circuit: a circuit in which components are connected in branches.
Period: the time taken for one complete oscillation or cycle to be performed.